Geological Characteristics of Shale Reservoir of Pingdiquan Formation in Huoshaoshan Area, Junggar Basin

Unconventional oil and gas, represented by shale gas oil, have occupied an important position in global energy. The rapid growth of production shows great potential for the exploration development resources. Junggar basin, main oil-bearing basin China, is rich resources, so it practical significance to carry out systematic research on geological characteristics reservoirs this region. To end, paper designates reservoir Pingdiquan Formation Huoshaoshan area Jungar Basin as object, carries a survey that area, analyzes forming conditions using interpretation method, different local trap types their control factors dissecting explored reservoir, optimizes evaluates favorable traps source, fault, facies circle coupling analysis establishes single good identification standard sedimentary microfacies, well-connected microfacies analysis. Using geochemical methods, such rock pyrolysis, maceral analysis, vitrinite reflectance, kerogen carbon isotope, saturated hydrocarbon chromatography, etc., abundance organic matter intervals are analyzed evaluated. This aims analyze content provide reliable evaluation guide better resources future. innovative expenditure lies conducting from two aspects: controlling formation structural point view pore structure core experiment view, also classification matter, basis finding traps. results show system study small fluvial delta, which belongs compression structure, with developed NNE-oriented belts faults; form short-axis anticline whole, coil closure at −900 m, 50 km2 height 180 m. According 19 faults all levels were found vertical migration good. was oil-bearing, many strata strong horizontal independence reservoir. thickness Permian 300~1200 m divided into 3 formations, 9 sublayers, 22 monolayers top bottom. generally high, average total 3.53%, generation 18.1 mg/g, chloroform asphalt 0.57%, 3011 μg/g, belong standard, especially Ping-2. layers I-II1, I-II2, II1-II2, respectively. isotope −2.4%, type II2 kerogen.